Internal error occurred: failed calling webhook "rancher.cattle.io": failed to call webhook: Post "https://rancher-webhook.cattle-system.svc:443/v1/webhook/mutation?timeout=10s": dial tcp 10.43.211.72:443: connect: connection refused

I have tried multiple version setups with no success attempting to create a Custom Cluster “Use existing nodes and create a cluster using RKE” My use case is a single node for a home lab setup. Please help.

  • Install similar to youtube “Docker, Rancher, Kubernetes… Minecraft? (Rancher Setup and Install Tutorial)”
  • installed ubuntu server 20.04.4 LTS with no updates or upgrades (except QEME guest agent for IP recognition via proxmox)
  • made several attempts at various versions as outlined here Support matrix | SUSE
    curl https://releases.rancher.com/install-docker/20.10.sh | sh
    sudo usermod -aG docker $USER
  • logged out then back in to enable
    docker run -d --restart=unless-stopped -p 9090:80 -p 9091:443 --privileged -v /opt/rancher:/var/lib/rancher --name=rancher_server rancher/rancher:latest
  • Many attempts at creating a Custom Cluster “Use existing nodes and create a cluster using RKE” with no success

The steps you’ve listed are for installing the Rancher server. Once you’ve done that you need to go through the UI to create a new cluster. That will give you a docker command to run on each of the nodes you want to run the cluster on.

What step is failing and what error are you getting?